Automatic train-stop mechanism.



"Patented Apr; 6, 1915.

'* orries.

EDMON W. KELLER, F GRIPPLE CREEK, COLORADO.

AUTOMATIC TRAIN-STOP MECHANISM.

To all whom it may conce'inz Be it known that I, EDMON W. KELLER, acitizen of the United States, residing at Cripple Creek, in the countyof Teller and State of Colorado, have invented certain new and usefulImprovements in Automatic Train-Stop Mechanism and I do hereby declarethe following to be a full, clear, and

exact description of the invention, such as willenable others skilled inthe art to which it appertains to make and use the same.

This invention comprehends improvements in automatic train stopmechanisms,

-holding said lever against the action of a spring and diametricaioperating means for tripping said latch to allow the lever to be swung.

lVith these and other objects in view, as will become more apparent asthe description proceeds, the invention consists of certain novelfeatures of construction, combination and arrangement of parts, and willbe hereinafter fully described and claimed.

For a complete understanding of my invention, reference is to be had tothe following description and accompanying drawings, in which Figure 1is a diainetrical view showing that portion of my device which isadapted to be carried by a locomotive, Fig. 2 is an edge elevationof'the signal operated obstacle, Fig. -3 is a side elevation of theobstacle, and Fig. 4 is a detail view of the latch carried by thethrottle lever.

Referring in detail to the drawing by numorals, 5 designates portion ofa locomotive boiler,-6 a pivoted throttle lever, 7 the engineers valve.and 8 the running board of a locomotive. The throttle lever carries asliding latch. 9 which is adapted to engage a toothed segment 10 andlock said lever in any desired position. This latch may be 'manuallyoperated in the usual manner by Specification'pf Letters Patent.

Application filed August 11, 1913. Serial No. 784,198.

Patented A r. 6, 1915.

means of a latch rod 11 and grip, or handle 12.

In the preferred embodiment of my invention I provide a base plate .13of any size and shape, said plate being fixed to the boiler 5 at anysuitable place. A lever 14 is pivoted intermediate its ends to the plate13 and has a long upper arm and a short lower arm. A contractile spiralspring 15 is securely connected to the extremity of the upper arm of thelever and to the base plate 13. The spring tends to draw the upper endof the lever 14 away from the throttle lever 6. A flexible connection 16is secured at one end to the top of the lever 14 and at its other end tothe latch 9, said connection extending through an eye 17 carried by.thethrottle lever directly under the latch. A second flexible connection18 is also secured at one end to the lever 14 adjacent the upper end'15, I provide a spring latch 22. This latch is rigidly secured at oneend to the base plate 13, extends under the lower end of the lever 1 andhas a head 23 which engages one end of said lever to hold the latter ina vertical position. A flexible connection 24 is connected at one end tothe latch 22 adjacent the head 23 thereof and at its other end to a triplever 25 which is pivoted intermediate its ends to a bracket 26 suitablypositioned upon the running board 8. A guide pulley 27 is provided so asto cause the connection 24 to exert a downward pull upon the latch 22.

For engagement with the trip lever 25, in case of danger, I provide anobstacle 28 in the forinoi' an elongated bar. This bar is endeavor torun by this obstacle, the latter will engage the trip lever 25 androtate the same about its pivot so as to cause the latch 22 to be swungdownwardly away from en gagement with the lever 1 1. As soon as thishappens, the spring 15 will swing the upper end of the lever 14 awayfrom the throttle lever 16 and engineers valve 17, causing the fiexibleconnections 16 and 18 to actuate the throttle lever and handle 19respectively. A pull upon the connection 16 releases the latch 9 fromthe segment 10 and swings the throttle lever so as-to shut ofi the flowof steam to the cylinders of the locomotive. A pull upon the connection18 swings the handle 19 so as to release air from the train line andapply the airbrakes. It will be understood that the lever 14 may also bemade to operate other devices, such as a Whistle and sand-box, ifdesired. One of the advantages of my device arises from the fact thatbut a slight downward pull is necessary to disengage the latch 22 fromthe lever/14, this latch being of a spring material can be readilysprung from engagement with the lever no matter how strong thespring-1,5;

may-be.

. From the foregoing description While 1-. have shown and described thepreferred'embodinient of my invention, it

I cured to the 7 taken in, connection with the accompanying draw- Lings, it will be apparent that I have pro-,-

will be understood thatminor changeslin construction, combination andarrangement locomotive having a boiler zggda swinging throttle lever andan engineers valve, a

plate secured to theboileri-adiacent the throttle, a secondlever'piyntalfy secured to said plate intermediate -,itsf-end s,1itsupper end being reduced ,hajvingkai flexible connection secured"thereonglhe free end of said flexible connection secured to the latch ofthetlfrottle lover, a latch Socured to said plate, adjacent the lever"thereonfi-itsijree endto engage thelower end of said lever and hold 'sanzeinJa ljwertical;

a coil spring'jattached 'to fl eeupper'end o cured-to thepllgefiajflexible connection so released and the throttle operated.Intestimonyyhereofl affix in presence of two witnesses' j,;

MQN Witnesses: p

' ,RQBERT H. RAINQ- n M l A- on? the g i i was,

end ofv -s'aid latch and exw' tending downwardly-and outwardl ntoi a'i'pivnted rodpslid rod adapted to" object ,ou. the track gvhereby sai

